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commit 0ddece40c558c0e84395fb5ef805dc9b018ebf81 Author: Andreas Rheinhardt <[email protected]> AuthorDate: Tue Mar 3 02:42:58 2026 +0100 Commit: Andreas Rheinhardt <[email protected]> CommitDate: Fri Mar 6 20:02:42 2026 +0100 avcodec/x86/vvc/alf: Simplify vb_pos comparisons The value of vb_pos at vb_bottom, vb_above is known at compile-time, so one can avoid the modifications to vb_pos and just compare against immediates. Signed-off-by: Andreas Rheinhardt <[email protected]> --- libavcodec/x86/vvc/alf.asm | 60 +++++++++++++++++++++------------------------- 1 file changed, 27 insertions(+), 33 deletions(-) diff --git a/libavcodec/x86/vvc/alf.asm b/libavcodec/x86/vvc/alf.asm index dd3652843e..22205c3ca2 100644 --- a/libavcodec/x86/vvc/alf.asm +++ b/libavcodec/x86/vvc/alf.asm @@ -192,64 +192,58 @@ SECTION .text je %%vb_bottom cmp vb_posd, 4 jne %%vb_end -%else - cmp vb_posd, 2 - jne %%vb_end - cmp %1, 2 - jge %%vb_bottom -%endif - %%vb_above: - ; above + ; above: vb_pos == 4 ; p1 = (y + i == vb_pos - 1) ? p0 : p1; ; p2 = (y + i == vb_pos - 1) ? p0 : p2; ; p3 = (y + i >= vb_pos - 2) ? p1 : p3; ; p4 = (y + i >= vb_pos - 2) ? p2 : p4; ; p5 = (y + i >= vb_pos - 3) ? p3 : p5; ; p6 = (y + i >= vb_pos - 3) ? p4 : p6; - dec vb_posd - cmp vb_posd, %1 + cmp %1, 3 cmove s1q, srcq cmove s2q, srcq - dec vb_posd - cmp vb_posd, %1 - cmovbe s3q, s1q - cmovbe s4q, s2q + cmp %1, 1 + cmova s3q, s1q + cmova s4q, s2q - dec vb_posd -%if LUMA - cmp vb_posd, %1 - cmovbe s5q, s3q - cmovbe s6q, s4q -%endif - add vb_posd, 3 + cmovae s5q, s3q + cmovae s6q, s4q jmp %%vb_end %%vb_bottom: - ; bottom + ; bottom: vb_pos == 0 ; p1 = (y + i == vb_pos ) ? p0 : p1; ; p2 = (y + i == vb_pos ) ? p0 : p2; ; p3 = (y + i <= vb_pos + 1) ? p1 : p3; ; p4 = (y + i <= vb_pos + 1) ? p2 : p4; ; p5 = (y + i <= vb_pos + 2) ? p3 : p5; ; p6 = (y + i <= vb_pos + 2) ? p4 : p6; - cmp vb_posd, %1 + cmp %1, 0 cmove s1q, srcq cmove s2q, srcq - inc vb_posd - cmp vb_posd, %1 - cmovae s3q, s1q - cmovae s4q, s2q + cmp %1, 2 + cmovb s3q, s1q + cmovb s4q, s2q - inc vb_posd -%if LUMA - cmp vb_posd, %1 - cmovae s5q, s3q - cmovae s6q, s4q + cmovbe s5q, s3q + cmovbe s6q, s4q +%else ; chroma + cmp vb_posd, 2 + jne %%vb_end + cmp %1, 2 + jge %%vb_bottom +%%vb_above: + cmp %1, 1 +%%vb_bottom: + cmove s1q, srcq + cmove s2q, srcq + + mov s3q, s1q + mov s4q, s2q %endif - sub vb_posd, 2 %%vb_end: %endmacro _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
